Update dependency black to v26 [SECURITY]

renovate[bot] · web-flow · commit ab4019dd4297 · 2026-03-12T21:08:37.000Z
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 
-black==25.1.0
+black==26.3.1
 pytest==8.3.5
 mypy==1.15.0
 django-stubs[compatible-mypy]==5.2.0
